问题
解答题
求未知数X:
|
答案
(1)X+16X=78,
17X=78,
17X÷17=78÷17,
X=
;78 17
(2)0×34-14X=165,
-14X=165,
-14X÷(-14)=165÷(-14),
X=-
;165 14
(3)61-14X=34,
61-14X+14x=34+14x,
61=34+14X,
61-34=34+14X-34,
27=14X,
27÷14=14X÷14,
X=
.27 14